Analysis of factors affecting the prognosis of neonatal cholestasis

Objective To analyze the influential factors of the prognosis of neonatal cholestasis. Methods The data on 106 newborns with neonatal cholestasis collected from January 1, 2009 to June 30, 2016 was collected and analyzed retrospectively. All cases were divided into cure group (99 patients) and improvement group (7 patients) according to the effect of oral ursodeoxycholic acid therapy and comprehensive medical treatment. There was no cure for invalid case. The clinical features, course of disease and curative effect were observed. The levels of total bilirubin (TB), direct bilirubin (DB), alanine aminotransferase (ALT), aspartate aminotransferase (AST), gamma glutamyl transpeptidase (γ-GT), total bile acid (TBA) were compared between two groups. The ratio of neonatal bacterial infection, cytomegalovirus (CMV) infection, sex, total intravenous nutrition (more than 7 d), perinatal hypoxia, premature birth, maternal complicated intrahepatic cholestasis of pregnancy (ICP) were compared between two groups. Multiple Logistic regression analysis was used to analyze the prognosis factors of neonatal cholestasis. Results The levels of serum ALT, AST, γ-GT, TB, DB and TBA in improvement group were significantly higher than those in cure group, the course of disease in improvement group was significantly longer than that in cure group, there were significant differences (P < 0.05). A strong linear correlation was showed between course of disease and the levels of serum ALT, AST, TB, DB and TBA (tALT=13.050, tAST=14.696, tTB=12.771, tDB=13.776, tTBA=12.019, P < 0.05). Multiple Logistic regression analysis showed that the prognosis of neonatal cholestasis was associated with bacterial infection, CMV infection, total intravenous nutrition (more than 7 d) and premature (OR=9.375, 7.909, 11.333, 11.333, P < 0.05). Conclusions The higher the level of serum TB, DB, TBA, ALT and AST, the longer the course of the disease. Bacterial infection, CMV infection, total venous nutrition(≥ 7 d) and premature are the risk factors of the prognosis of neonatal cholestasis. Therefore, prevention of neonatal bacterial and CMV infection, reduction of the occurrence of preterm delivery and reduction of the total parenteral nutrition time are very important to improve the prognosis of neonatal cholestasis. Key words: Neonate; Cholestasis; Prognosis; Factors